holy shit we're actually talking

wew

client/error.html

@@ -116,8 +116,10 @@
             <h2>An error occurred.</h2>
 
             <p><i>Details: <span id="errorText"></span></i></p>
-
-            <p>Please report this error to <a href="mailto:aleco@aroltd.com">aleco@aroltd.com</a>.
+            <p>
+                Please report this error to <a href="mailto:aleco@aroltd.com">aleco@aroltd.com</a>.
+            </p>
+            <p><a href="index.html">Click here to try again.</a></p>
         </div>
     </body>
 </html>

client/src/Connection.ts

@@ -13,6 +13,7 @@ class Connection {
 
         // FLAG replace hard coded url with one loaded from a config file
         Connection.sock = new WebSocket("ws://localhost:6770");
+        Connection.sock.binaryType = "arraybuffer";
 
         Connection.onOpenFunc = onOpen;
         Connection.sock.onopen = Connection.onOpen;
@@ -28,8 +29,10 @@ class Connection {
     }
 
     private static onMessage(event: any): void {
-        var msg = Packet.fromBytes(event.data);
+        var raw = new Uint8Array(event.data);
+        var msg = Packet.fromBytes(raw);
         console.log(msg);
+        console.log(msg[1].toString());
 
         switch(msg.id) {
             case kPacketId.KeyExchange:

client/src/Entrypoint.ts

@@ -1,6 +1,3 @@
-/// <reference path="FileCache.ts" />
-/// <reference path="Utilities.ts" />
-
 class Entrypoint {
     private static initStatus = {
         fileCache: false
@@ -16,6 +13,8 @@ class Entrypoint {
     }
 
     public static start(): void {
+        Connection.open();
+
         FileCache.initCache(
             // SUCCESS 
             () => { 

client/src/Extensions.ts

@@ -1,5 +1,3 @@
-/// <reference path="def/UTF8.d.ts" />
-
 // ** STRING EXTENSIONS ** \\
 
 interface String {
@@ -162,6 +160,8 @@ interface Uint8Array {
     
     unpackFloat(offset?: number): number;
     unpackDouble(offset?: number): number;
+
+    toHexString(): string;
 }
 
 Uint8Array.prototype.unpackInt16 = function(offset: number = 0): number {
@@ -202,4 +202,34 @@ Uint8Array.prototype.toString = function(): string {
         raw += String.fromCharCode.apply(null, this.subarray(chunkSize*i, chunkSize*i + chunkSize));
     }
     return utf8.decode(raw);
+}
+
+Uint8Array.prototype.toHexString = function(): string {
+    var ret = "";
+    for(var i = 0; i < this.byteLength; ++i) {
+        var byte = this[i].toString(16);
+        if(byte.length < 2)
+         byte = "0"+ byte;
+
+        ret += byte +" ";
+    }
+
+    return ret.trim();
+}
+
+
+// ** BIGINT EXTENSIONS ** \\
+
+interface bigInt {
+    toByteArray(): Uint8Array;
+}
+
+bigInt.prototype.toByteArray = function(): Uint8Array {
+    var hexString: string = this.toString(16);
+    var byteCount = Math.ceil(hexString.length / 2);
+    var byteArray = new Uint8Array(byteCount);
+
+    for(var i = 0; i < byteCount; ++i) {
+        byteArray[i] = parseInt(hexString.substr(Math.max(0, hexString.length - 2*(i+1)), hexString.length - 2*i), 16);
+    }
 }

client/src/FileCache.ts

@@ -8,8 +8,10 @@ class FileCache {
             var db: IDBDatabase = event.target.result;
 
             var stores = db.objectStoreNames;
+            /*
             for(var i in stores)
-                db.deleteObjectStore(stores[i]);
+                db.deleteObjectStore(i);
+            */
 
             db.createObjectStore("files", {keyPath: "name", autoIncrement: false});
             db.createObjectStore("metadata", {keyPath: "name", autoIncrement: false});

client/src/Packet.ts

@@ -23,18 +23,26 @@ class Packet {
     public getRegionString(region: number): string {
         return this.getRegion(region).toString();
     }
-    public addRegion(region: object): void {
+    public addRegion(region: object): Packet {
         if(typeof region == "string")
             this._regions.push((<string>region).toByteArray());
         else if(region instanceof Uint8Array)
             this._regions.push(region);
+
+        this[this.regionCount-1] = this._regions[this.regionCount-1];
+        return this;
     }
 
-    public Packet(id: kPacketId, regions: any[]) {
-        this._id = id;
+    private constructor() {}
+
+    public static create(id: kPacketId, regions: any[]): Packet {
+        var packet = new Packet;
+        packet._id = id;
         regions.forEach(region => {
-            this.addRegion(region);
+            packet.addRegion(region);
         });
+
+        return packet;
     }
 
     public static fromBytes(bytes: Uint8Array): Packet {
@@ -58,7 +66,7 @@ class Packet {
         }
 
         for(var i = 0; i < regionCount; ++i) {
-            packet.regions.push(bytes.subarray(ptr, ptr + regionLengths[i]));
+            packet.addRegion(bytes.subarray(ptr, ptr + regionLengths[i]));
             ptr += regionLengths[i];
         }
 

server/DAL/ScapeDb.Context.cs

@@ -7,7 +7,7 @@
 // </auto-generated>
 //------------------------------------------------------------------------------
 
-namespace Server.DAL
+namespace CircleScape.DAL
 {
     using System;
     using System.Data.Entity;

server/DAL/Sessions.cs

@@ -7,7 +7,7 @@
 // </auto-generated>
 //------------------------------------------------------------------------------
 
-namespace Server.DAL
+namespace CircleScape.DAL
 {
     using System;
     using System.Collections.Generic;

server/DAL/Users.cs

@@ -7,7 +7,7 @@
 // </auto-generated>
 //------------------------------------------------------------------------------
 
-namespace Server.DAL
+namespace CircleScape.DAL
 {
     using System;
     using System.Collections.Generic;

server/Encryption/Cipher.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 using System.Numerics;
 using Square;
 
-namespace Server.Encryption {
+namespace CircleScape.Encryption {
     class Cipher {
         private byte[] Key = new byte[512 / 8];
         private byte[] State = new byte[256];

server/Encryption/KeyExchange.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 using System.Numerics;
 using Square;
 
-namespace Server.Encryption {
+namespace CircleScape.Encryption {
     class KeyExchange {
         private BigInteger Secret;
         public BigInteger Generator { get; private set; } = 2;
@@ -22,7 +22,12 @@ namespace Server.Encryption {
         }
 
         public Packet GenerateRequestPacket() {
-            return new Packet(Packet.kId.KeyExchange, Generator.ToHexString(), Modulus.ToHexString(), BigInteger.ModPow(Generator, Secret, Modulus).ToHexString());
+            return new Packet(
+                Packet.kId.KeyExchange, 
+                Generator.ToHexString(), 
+                Modulus.ToHexString(), 
+                BigInteger.ModPow(Generator, Secret, Modulus).ToHexString()
+            );
         }
 
         public BigInteger ParseResponsePacket(Packet packet) {

server/Entrypoint.cs

@@ -4,22 +4,24 @@ using System.Data.SQLite;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
-using Server.DAL;
+using CircleScape.DAL;
 using System.Numerics;
 using Square;
 
-namespace Server {
+namespace CircleScape {
     class Entrypoint {
         static void Main(string[] args) {
             var server = new Kneesocks.Server<PendingConnection>(6770, PoolManager.Pending);
             server.Start();
 
-            while(true) {
+            /*while(true) {
                 var send = Console.ReadLine();
                 PoolManager.Pending.Broadcast(Encoding.UTF8.GetBytes(send));
 
                 // logic processing loop
-            }
+            }*/
+
+            Console.ReadLine();
 
             server.Stop();
             PoolManager.Dispose();

server/Libraries/Kneesocks/Connection.cs

@@ -156,13 +156,13 @@ namespace Kneesocks {
         }
         
         private void ReadIfNotNull(ref byte[] buffer, int length) {
-            buffer = buffer == null ? Buffer.AttemptRead(length)
-                                    : buffer;
+            buffer = buffer ?? Buffer.AttemptRead(length)
+;
         }
 
         private void ReadIfNotNull(ref byte[] buffer, string terminator) {
-            buffer = buffer == null ? Buffer.AttemptRead(terminator)
-                                    : buffer;
+            buffer = buffer ?? Buffer.AttemptRead(terminator)
+;
         }
         
         internal void Parse() {

server/Libraries/Kneesocks/Frame.cs

@@ -85,9 +85,13 @@ namespace Kneesocks {
                                  | (IsMasked ? 0x80 : 0x0));
 
             if(headerLengthFirstByte >= 0x7E) {
-                var upperBound = headerLengthFirstByte == 0x7E ? 2 : 8;
-                for(var i = 0; i < upperBound; ++i)
-                    returnValue[2 + i] |= (byte)((bodySize >> (8*(upperBound - i))) & 0xFF);
+                var lengthBytes = 
+                    headerLengthFirstByte == 0x7E 
+                        ? ((UInt16)bodySize).Pack() 
+                        : bodySize.Pack();
+
+                for(var i = 0; i < lengthBytes.Length; ++i)
+                    returnValue[2 + i] = lengthBytes[i];
             }
 
             if(IsMasked)

server/Libraries/Kneesocks/Stack.cs

@@ -51,8 +51,7 @@ namespace Kneesocks {
                         if(connected) {
                             try {
                                 client.Parse();
-                                if(CheckIfConnected(client))
-                                    connected = false;
+                                connected = CheckIfConnected(client);
                             } catch {
                                 connected = false;
                             }

server/Socks/ActiveConnection.cs

@@ -5,7 +5,7 @@ using System.Net.Sockets;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Server {
+namespace CircleScape {
     class ActiveConnection : Kneesocks.Connection {
 
     }

server/Socks/Packet.cs

@@ -5,7 +5,7 @@ using System.Text;
 using System.Threading.Tasks;
 using Square;
 
-namespace Server {
+namespace CircleScape {
     class Packet {
         public enum kId {
             KeyExchange = 0,
@@ -17,7 +17,7 @@ namespace Server {
             get => new Packet { IsLegal = false };
         }
 
-        public static Packet FromRaw(byte[] raw) {
+        public static Packet FromBytes(byte[] raw) {
             if(raw.Length < 3)
                 return ErrorPacket;
 
@@ -82,11 +82,13 @@ namespace Server {
             get => new Region(Regions[i]);
         }
 
-        public void AddRegion(object region) {
+        public Packet AddRegion(object region) {
             if(region.GetType() == typeof(byte[]))
                 Regions.Add((byte[])region);
             else if(region.GetType() == typeof(string))
                 Regions.Add(((string)region).GetBytes());
+
+            return this;
         }
 
         public byte[] GetBytes() {

server/Socks/PendingConnection.cs

@@ -6,15 +6,21 @@ using System.Text;
 using System.Threading.Tasks;
 using Square;
 using Kneesocks;
+using CircleScape.Encryption;
 
-namespace Server {
+namespace CircleScape {
     class PendingConnection : Connection {
         private DateTime ConnectionOpened;
+        private KeyExchange Key;
+        private Cipher Encryptor;
 
 
 
         protected override void OnOpen() {
             ConnectionOpened = DateTime.UtcNow;
+            Key = new KeyExchange();
+
+            Send(Key.GenerateRequestPacket().GetBytes());
         }
 
         protected override void OnParse() {
@@ -24,6 +30,24 @@ namespace Server {
         }
 
         protected override void OnReceive(byte[] data) {
+            var packet = Packet.FromBytes(data);
+            if(!packet.IsLegal) {
+                Disconnect(Frame.kClosingReason.ProtocolError, "Packet received was not legal.");
+                return;
+            }
+
+            switch(packet.Id) {
+                case Packet.kId.KeyExchange:
+                    Key.ParseResponsePacket(packet);
+                    if(!Key.Succeeded) {
+                        Disconnect(Frame.kClosingReason.ProtocolError, "Could not exchange keys.");
+                        return;
+                    }
+
+                    Encryptor = new Cipher(Key.PrivateKey);
+                    break;
+            }
+
             Console.WriteLine(Id + " says " + data.GetString());
         }
     }

server/Socks/PoolManager.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 using Kneesocks;
 using System.Net.Sockets;
 
-namespace Server {
+namespace CircleScape {
     static class PoolManager {
         private static Pool<PendingConnection> PendingConnectionsPool;
         private static Pool<ActiveConnection> ActiveConnectionsPool;